Not sure what twist im looking for.. Im thinking about building a 1000 m rifle. But we don't have a 1000m here on Vancouver island. Stabilizing something in the 80-100 gr area of the spectrum would also be nice. oh.. and I like thick heavy barrels. So LV / HV sorta thing...? Building a 1000m rigfle allows me to shoot to that distance should the opportunity arise. If I build for the island or the "short course" I'd be shooting myself in the foot so to say.. So I would rather have it and not use it than have to go find it and come up short.